Equipment for production – distribution – or transformation of ene – Energy conversion or transformation – Element or attachment
Design Patent
1998-09-02
2002-03-26
Sincavage, Joel (Department: 2911)
Equipment for production, distribution, or transformation of ene
Energy conversion or transformation
Element or attachment
Design Patent
active
D0454839
CLAIM:
The ornamental design for a three-phase ring transformer core, as shown and described.
REFERENCES:
patent: 2248606 (1941-01-01), Camilli
patent: 2838732 (1958-06-01), Brown
patent: 4588971 (1986-05-01), Beisser
patent: 4639705 (1987-01-01), Beisser
patent: 4852246 (1989-08-01), Rochester
patent: 40 29 097 (1992-03-01), None
patent: 57-124408 (1982-08-01), None
patent: 61-036914 (1986-02-01), None
Hochberg D. Peter
Holt William H.
Sincavage Joel
Vieyra Katherine R.
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